US10722553B2 - Medicament containing recombinant mistletoe lectins for the treatment of brain tumors - Google Patents
Medicament containing recombinant mistletoe lectins for the treatment of brain tumors Download PDFInfo
- Publication number
- US10722553B2 US10722553B2 US16/077,512 US201716077512A US10722553B2 US 10722553 B2 US10722553 B2 US 10722553B2 US 201716077512 A US201716077512 A US 201716077512A US 10722553 B2 US10722553 B2 US 10722553B2
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- US
- United States
- Prior art keywords
- mistletoe lectin
- mistletoe
- cells
- recombinant mistletoe
- recombinant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A61K38/168—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/415—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
- C07K14/42—Lectins, e.g. concanavalin, phytohaemagglutinin
Definitions
- the invention relates to a medicament and/or pharmaceutical composition containing recombinant mistletoe lectins for the treatment of brain tumours, in particular primary brain tumours, gliomas, glioblastomas, meningiomas and pituitary adenomas, and use thereof.
- Primary brain tumours such as gliomas, glioblastomas, meningiomas and pituitary adenomas, start from the neuroepithelium, ganglion cells, meninges, nerve sheaths, general nervous supporting tissue or neuroglia and pituitary or ectopic intracranial tissues (germ cell tumours or deformity tumours), and their causes are considered in particular to lie in genetic and hormonal factors, oncogenic viruses, and exogenous carcinogens.
- tumours of the central nervous system localised in the brain, of varying differentiation and comprising various sub-types, such as: astrocytic tumours, oligodendrogliomas, mixed gliomas (oligoastrocytomas), ependymomas, tumours of the plexus choroideus, retinoblastomas, etc.
- the WHO degree of classification is based on dignity: grade I (non-malignant, benign), grade II (semi-benign; postoperative life expectancy 3-5 years), grade III (semi-malignant; postoperative life expectancy 2-3 years), grade IV (malignant; postoperative life expectancy 6-16 months); and frequency: proportion of total or primary brain tumours in all tumour diseases: 7-9% (Kleihues, P., Louis, D. N., Scheithauer, B. W., Rorke, L. B., Reifenberger, G., Burger, P. C., and Cavenee, W. K. (2002) The WHO classification of tumors of the nervous system. J. Neuropathol. Exp. Neurol. 3, 215-225).
- a glioma is characterised histologically in (giant cell) (oligo)astrocytoma, oligodendroglioma, mixed gliomas, glioblastoma, and is differentiated depending on growth, such as isomorphic, anaplastic, pilocytic, etc. Sub-groups of gliomas can also be predicted on the basis of the loss of heterozygosity (Smith, J. S., and Jenkins, R. B. (2000) Genetic alterations in adult diffuse glioma: occurrence, significance, and prognostic implications. Front Biosci.
- tumour suppressor genes Tews, B., Felsberg, J., Hartmann, C., Kunitz, A., Hahn, M., Toedt, G., Mau, K., Hummerich, L., von Deimling, A., Reifenberger, G., and Lichter, P. (2006) Identification of novel oligodendroglioma-associated candidate tumor suppressor genes in 1p36 and 19q13 using microarray-based expression profiling. Int J Cancer. 119, 792-800).
- GBM glioblastomas
- NK Natural killer cells as part of the natural immune system play a key role in the destruction of cancer cells. GBM cells develop strategies for avoiding this killing by down-regulating proteins that are necessary for interaction with NK cells, these being known as danger/stranger protein major histocompatibility complex (MHC), MHC class I polypeptide-related sequence (MIC)-A and -B, or UL16 binding proteins (ULBP) 1, 2, 3, more specifically by means of TGF- ⁇ mediated immunosuppression.
- MHC danger/stranger protein major histocompatibility complex
- MIC MHC class I polypeptide-related sequence
- ULBP UL16 binding proteins
- TGF- ⁇ is an essential feature of GBM, and high concentrations of TGF- ⁇ can be detected in glioma patients in the cerebrospinal fluid, which is correlated with the growth of the tumour (Kjellman C, Olofsson S P, Hansson O et al: Expression of TGF-beta isoforms, TGF-beta receptors, and SMAD molecules at different stages of human glioma. Int J Cancer 2000; 89: 251-258).
- TGF- ⁇ is responsible for the down-regulation of MHC expression, increasing the differentiation of na ⁇ ve cells in T-reg cells, blocking dendritic cell maturation, and inducing cell death of K and T-cells (Eisele G, Wischhusen J, Mittelbronn M et al.: TGF-beta and metalloproteinases differentially suppress NKG2D ligand surface expression on malignant glioma cells. Brain 2006; 129: 2416-2425, Platten M, Wick W, Weller M: Malignant glioma biology: role for TGF-beta in growth, motility, angiogenesis, and immune escape. Microsc Res Tech 2001; 52: 401-410).
- brain tumours in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas.
- Mistletoe extracts have been used therapeutically for hundreds of years. In particular in cancer therapy, mistletoe preparations have been used with varying levels of success (Bocci V 1993 J Biol Regulators and Homeostatic Agents 7(1): 1-6; Gabius H-J, Gabius S, Joshi S S et al. 1993 Planta Med 60: 2-7; Gabius H-J & Gabius S 1994 PZ 139: 9-16; Ganguly C & Das S 1994 Chemotherapy 40: 272-278, Hajto T, Hostanska K, Gabius H_J 1989 Cancer Res 49: 4803-4808, Hajto T, Hostanska K, Frei K et al. 1990 Cancer Res. 50: 3322-3326).
- mistletoe lectins viscumins, Viscum album Agglutinine, VAA.
- mistletoe lectin besides a cytotoxic effect, also brings about non-specific immunostimulation, the positive effects of which are used for therapy in tumour patients.
- Various studies with mistletoe lectin in vitro (Hajto et al., 1990 (supra); Mannel D N, Becker H, Gundt A et al. 1991 Cancer Immunol Immunother 33: 177-182; Beuth J, Ko K L, Tunggal L et al.
- mistletoe lectins ML-I, ML-II, ML-III
- the ML-I lectin consists of two glycosylated A- and B-chains (MLA and MLB).
- the A-chain is responsible for enzymatic inactivation of ribosomes (Endo Y, Tsurugi K & Franz H 1988 FEBS Lett 231: 378-380), whereas the B-chain is involved in carbohydrate bonding.
- the two chains are linked to one another by disulphide bridges.
- the resultant mistletoe lectin monomers can clump together to form dimers, with formation of non-covalent bonds.
- EP 0751221 describes the preparation of mistletoe lectin polypeptides in a pure state as a structurally homogenous substance, wherein, proceeding from the gene sequence of mistletoe lectin, recombinant, highly pure individual chains (A-chain, B-chain) are produced, which can be re-associated in vitro and thus provide a recombinant mistletoe lectin holoprotein, which is homogeneous in respect of its protein chemistry, enzymatically and structurally, also known as Aviscumine.
- the recombinant mistletoe lectin polypeptide is suitable as holoprotein and as sub-chain and in the form of sub-fragments for therapeutic purposes and is included within the scope of the invention.
- WO2012104355A1 also describes the antiviral effect of recombinant mistletoe lectins.
- WO2012136857A1 discloses the treatment of skin cancer, in particular of a malignant melanoma also in the form of a metastasising tumour by means of recombinant mistletoe lectins.
- recombinant mistletoe lectins were used advantageously in the treatment of tumour diseases.
- Podlech et al (Podlech O, Harter P N, Mittelbronn M et al.: Fermented mistletoe extract as a multimodal antitumoral agent in gliomas. Evid Based Complement Alternat Med 2012: 501796) describes the use of ISCADOR—a fermentatively obtained mistletoe extract—as growth inhibitor for GBM and indicates the antitumoral suitability of ISCADOR for the treatment of GBM.
- Lenartz (Lenartz et al., Immunoprotective Activity of the Galactoside-Specific lectin from mistletoe after Tumor Destructive Theraly in Glioma Patients, Anticancer Research 16: 3799-3802 (1996)) reports on a mistletoe extract (ML-1) for the treatment of glioma patients, wherein the mistletoe extracts have a specific glycosylation.
- mistletoe lectin obtained from Korean mistletoe for example should be assigned to the RIP II proteins, but has significant structural differences in the structure and conformation compared to the recombinant mistletoe lectin discussed here (Kang T B, Song S K, Yoon T J et al. 2007 J Biochem Mol Biol 40(6): 959-965). It is particularly disadvantageous that no exact dose adjustment is possible and that mistletoe lectins obtained from plant-based fermentatively or non-fermentatively produced extracts comprise impurities.
- the production of each new mistletoe extract batch yields a product that is not identical to the previous batch, with different contents of its ingredients including the glycosylated mistletoe lectins.
- the invention relates to a medicament and/or pharmaceutical composition containing recombinant mistletoe lectins for the treatment of the brain tumours, in particular primary brain tumours, gliomas, glioblastomas, meningionas and pituitary adenomas, and use thereof.
- FIG. 1 depicts a graph of the number of migrated cells as a function of incubation treatment of human gliomacells.
- ISC Qu ISCADOR Q.
- Avi Aviscumine.
- ML-1 mistletoe lectin I.
- Anti-M1 Ab mistletoe lectin antibody.
- FIG. 2 depicts a comparative heat map of upregulated and downregulated genes as a function of treatment with ISCADOR Qu, Aviscumine, or ML-1.
- the recombinant mistletoe lectins according to the invention advantageously do not have any such glycosylation, are absolutely pure, and can be produced reproducibly.
- recombinant mistletoe lectins not only have the aforesaid advantages, such as improved reproducibility, homogeneity and adjustable dosing, but provide improved NK cell cytotoxicity compared to a plant-based or fermentative mistletoe extract from the prior art via the NK cell surface marker NKG2D and are therefore particularly suitable for the treatment of brain tumours, gliomas, glioblastomas, meningiomas and pituitary adenomas.
- Recombinant mistletoe lectins also demonstrate a specific and advantageous anti-migratory effect on brain tumour cells.
- NK cells Natural killer (NK) cells as constituents of the natural immune system play a key role in the destruction of cancer cells.
- the docking of NK cells to tumour cells is necessary.
- the NKG2d receptors on NK cells and for activation of necessary surface proteins (NKp30, NKp44, NKp46) play an important role.
- the effect of the recombinant mistletoe lectins is compared with the effect of the fermented mistletoe extract ISCADOR Q on the interaction of NK cells with the GBM cell LNT0229-Luc.
- the object of the present invention thus lies in providing a medicament and pharmaceutical agent for the treatment of brain tumours, in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas.
- brain tumours in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas.
- the object is achieved by providing a medicament and a pharmaceutical composition, wherein these contain recombinant mistletoe lectins for the treatment of brain tumours, in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas.
- brain tumours in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas.
- the medicament according to the invention preferably comprises the mistletoe lectin A chain (MLA) or the mistletoe lectin B chain (MLB), in each case individually or together, also in the form of dimers (see for example EP 0 751 221 or EP 1 051 495).
- MVA mistletoe lectin A chain
- MLB mistletoe lectin B chain
- the recombinant mistletoe lectin polypeptide of the mistletoe lectin A chain comprises the following sequences: SEQ ID No. 1-3, inclusive of the isoforms thereof or a functional fragment thereof.
- the recombinant mistletoe lectin polypeptide of the mistletoe lectin B chain comprises the following sequences: SEQ ID No. 4-12, inclusive of the isoforms thereof or a functional fragment thereof (hereinafter all “recombinant mistletoe lectins”).
- a recombinant mistletoe lectin according to the invention is a heterodimer consisting of the sequences SEQ ID No. 1 and SEQ ID No. 4, see for example EP 0 751 221 (what is known as Aviscumine).
- fragments or derivatives of the polypeptides induce the same signals in a cell as the aforesaid peptides.
- fragments are peptide domains with defined functions.
- the “same biological function” also comprises the cytotoxicity, immunostimulation (both of the native and adaptive immune system), stimulation of the expression or the activation of surface markers, the induction of apoptosis, or endorphin stimulation.
- biological activity of the recombinant mistletoe lectin is understood here to mean any biological activity from the spectrum of all biological activities of the recombinant mistletoe lectin.
- a function of this kind is for example the pharmacological effect of the recombinant mistletoe lectin.
- the medicament according to the invention contains a recombinant mistletoe lectin polypeptide with the sequences SEQ ID No. 1-12 or a functional fragment thereof or any combination thereof.
- mistletoe lectins takes effect in patient populations that do not respond to tumour preparations by means of standard therapy or that comprise non-responders or therapy failures.
- the invention therefore comprises patients or patient populations of non-responders and therapy failures for the treatment of brain tumours, in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas, in which standard tumour therapy is unsuccessful.
- brain tumours in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas, in which standard tumour therapy is unsuccessful.
- brain tumour in accordance with the invention comprises primary brain tumours, such as gliomas, meningiomas and pituitary adenomas, starting from the neuroepithelium, ganglion cells, meninges, nerve sheaths, general nervous supporting tissue or neuroglia and pituitary or ectopic intracranial tissues (germ cell tumours or deformity tumours), and their causes are considered in particular to lie in genetic and hormonal factors, oncogenic viruses, and exogenous carcinogens.
- primary brain tumours such as gliomas, meningiomas and pituitary adenomas, starting from the neuroepithelium, ganglion cells, meninges, nerve sheaths, general nervous supporting tissue or neuroglia and pituitary or ectopic intracranial tissues (germ cell tumours or deformity tumours), and their causes are considered in particular to lie in genetic and hormonal factors, oncogenic viruses, and exogenous carcinogens.
- a preferred embodiment according to the invention is the treatment of gliomas (see for example the description of the indications in Pschyrembel®, 266 th edition 2014, De Gruyter Verlag, Berlin).
- the invention additionally relates to a medicament for the treatment of brain tumours, in particular primary brain tumours, such as gliomas, glioblastomas, meningiomas and pituitary adenomas, which contains the recombinant mistletoe lectin polypeptide optionally together with a pharmaceutically acceptable carrier, thus forming a pharmaceutical composition.
- a pharmaceutically acceptable carrier examples include buffered saline solutions, water, etc., various kinds of detergents, sterile solutions, etc.
- Medicaments that comprise such carriers can be formulated by means of known conventional methods. These medicaments can be administered to an individual in a suitable dose.
- the administration can be implemented locally, orally or parenterally, for example intravenously, intraperitoneally, subcutaneously, intramuscularly, locally, intranasally, intrabronchially or intradermally, or via a catheter at a point in an artery.
- the kind of dosing if determined by the treating doctor in accordance with the clinical factors. It is known to a person skilled in the art that the kind of dosing is dependent on various factors, such as body size or weight, body surface, age, sex, or general health of the patient, but also on the specific agent to be administered, the duration and kind of administration, and any other medicaments that might be administered in parallel.
- composition comprising the recombinant mistletoe polypeptides according to the invention can be administered locally or systemically.
- a dosing of the mistletoe lectins according to the invention for human use of 2-10 ng/kg (body weight) has proven to be advantageous.
- the administered amount is preferably 5 ng/kg body weight.
- the preferred human dosing not based on body weight is 350 ng.
- the medicament according to the invention is applied over a period of time of at least 8 weeks at a frequency of 1 ⁇ daily to 1 ⁇ weekly.
- the medicament is preferably administered 2 to 3 ⁇ weekly, particularly preferably 2 ⁇ weekly.
- the invention therefore relates to a method for dosing the recombinant mistletoe lectins according to the invention or the medicament according to the invention, wherein the dosing is 2 to 10 ng/kg (body weight).
- the invention relates to a method for dosing the recombinant mistletoe lectins according to the invention or the medicament according to the invention, wherein the dose is 200-500 ng, in particular 350 ng, and is administered to the patient at least 1 ⁇ weekly.
- LNT-229-Luc cells grow in DMEM (Sigma, Taufkirchen, Germany) medium with 10% foetal calf serum and penicillin/streptomycin in a humid atmosphere enriched with 5% CO2.
- PBMC peripheral blood mononuclear cells
- irradiated RPMI 8866 feeder cells ATCC, USA
- RPMI medium Sigma, Taufmün, Germany
- the NK cells are purified with the aid of an NK cell isolation kit (Miltenyi Biotec, Bergisch Gladbach, Germany) >98%.
- Their lytic activity in relation to GBM cells is determined via the Luciferase activity measurement.
- the NK cells are pre-incubated with antibodies against NKG2D (BioLegend, Fell, Germany) for 30 minutes prior to their 4-hour co-cultivation (effector/target cell 20:1) with the GBM cells.
- the GBM cells are in turn pre-treated for 24 h with Aviscumine or ISCADOR Q prior to the co-cultivation with the NK cells and are washed in the co-culture prior to their use.
- Aviscumine influences the effect of NK cells on the GBM cell by intensifying the interaction of their receptor NKG2D with the target cell.
- ISCADOR Q 200 mg is diluted 2000 times for incubation experiments (100 micrograms/ml).
- the extract contains, inter alia, various mistletoe lectins, the content of which in the used batch is stated as 15.050 micrograms mistletoe lectin/ml.
- the concentration of 7.5 nanogram lectins per ml leads after 48 h to an inhibition of growth of almost 20-30% in LNT-229 and SMA560 glioma cells.
- ISCADOR Q inter alia also contains various cytotoxic viscotoxins, the content of which in the used batch is stated as 364 micrograms viscotoxin/ml. This means a viscotoxin concentration of 182 nanograms viscotoxins per ml incubation solution.
- mistletoe lectin Aviscumine inhibits the growth of various brain tumour cells by 100% in a concentration range of 0.4-11 ng/ml and as an inhibitor of brain tumour cells is thus >10 times more potent than ISCADOR Q. If it is desired to attribute the effect of ISCADOR Q to the mistletoe lectins contained therein, mistletoe lectin-antagonising ingredients must thus be assumed in the fermented extract.
- mistletoe extracts are also cytotoxic (see Eggenschwiler J, von B L, Stritt B, Pruntsch D, Ramos M, Urech K, Rist L, Simoes-Wust A P, Viviani A; Mistletoe lectin is not the only cytotoxic component in fermented preparations of Viscum album from white fir ( Abies pectinata ). BMC Complement Altern Med 2007, 7:14).
- the human glioma cell line LNT-229 was incubated for 24 h with the mistletoe lectin-containing extract Iscador Qu, Aviscumine and native mistletoe lectin I.
- the used concentrations corresponded to 8 ng ML-I/ml.
- the cells were washed for removal of the active substances, and in each case 20,000 cells were applied in a cell migration chamber (Boyden Chamber) to the upper layer of a polycarbonate membrane, which on account of its 8 mm pores is permeable for the cells and which divides the chamber into an upper and lower compartment.
- Cells that have migrated through the membrane either remain adhered to the underside of the membrane depending on their adherent properties (content of pro-migratory or anti-migratory proteins) or pass into the buffer located in the lower compartment.
- the membrane can be removed, and the adhering cells stained and counted. The difference between cell count and adhering cells is the number of migrated cells. The results are shown in FIG. 1 .
- the number of migrating cells reduces on account of the mistletoe lectin effect.
- Antibodies against mistletoe lectin cancel the effect.
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Abstract
Description
Aviscumine | 200-500 | ng |
Sodium monohydrogen phosphate dihydrate | 2.8 mg-5.6 mg |
Sodium dihydrogen phosphate dihydrate | 0.078 mg-0.155 mg |
Sodium chloride | 3.3 mg-6.7 mg |
Polyoxyethylene sorbitan ester (polysorbate) | 0.1 | mg |
Glutaminic acid | 0.1 | mg |
Water for injection | ad 0.5 ml to ad 1.0 mL |
Aviscumine | 200-500 | ng | ||
Trehalose | 40.0 | mg | ||
Sodium chloride | 1.0 | mg | ||
Tris(hydroxymethyl)aminomethane (TRIS) | 0.6 | mg | ||
Polyoxyethylene sorbitan ester (polysorbate) | 0.1 | mg | ||
Hydrochloric acid to adjust the pH value for administration, the powder is dissolved with 0.5 mL or 1.0 mL water for injection. |
GBM cell lysis |
Without antibody | anti-NKG2D pre- | |||
treatment | treatment | |||
Medium | 67% | 32.1% | P < 0.05 |
(Inhibition: | |||
d. lysis by 52.1%) | |||
Aviscumine | 68.4% | 42.6% | P < 0.05 |
(Inhibition: | |||
d. lysis by 37.7%) | |||
Iscador Q | 83.2% | 61.6% | not |
significant | |||
Claims (11)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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EP16155735.0A EP3205348A1 (en) | 2016-02-15 | 2016-02-15 | Medicine containing recombinant mistellectins for treating brain tumours |
EP16155735 | 2016-02-15 | ||
EP16155735.0 | 2016-02-15 | ||
PCT/EP2017/053429 WO2017140739A1 (en) | 2016-02-15 | 2017-02-15 | Medicament containing recombinant mistletoe lectins for the treatment of brain tumors |
Publications (2)
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US20190046606A1 US20190046606A1 (en) | 2019-02-14 |
US10722553B2 true US10722553B2 (en) | 2020-07-28 |
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US (1) | US10722553B2 (en) |
EP (2) | EP3205348A1 (en) |
DK (1) | DK3416674T3 (en) |
EA (1) | EA201891722A1 (en) |
ES (1) | ES2856066T3 (en) |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6271368B1 (en) * | 1995-06-26 | 2001-08-07 | Madus Ag Köln | Recombinant mistletoe lectin (rML) |
WO2003054544A2 (en) | 2001-12-21 | 2003-07-03 | Viscum Ag | Method for determination of the responsiveness of an individual to mistletoe lectin |
EP2508195A1 (en) | 2011-04-06 | 2012-10-10 | Cytavis BioPharma GmbH | Medicine containing recombinant mistellectins for treating malignant melanoma |
Family Cites Families (2)
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DE19804210A1 (en) | 1998-02-03 | 1999-08-12 | Biosyn Arzneimittel Gmbh | Recombinant mistletoe lectins |
DE102011003478A1 (en) | 2011-02-01 | 2012-08-02 | Cytavis Biopharma Gmbh | Antiviral agent containing recombinant mistletoe lectins |
-
2016
- 2016-02-15 EP EP16155735.0A patent/EP3205348A1/en not_active Withdrawn
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2017
- 2017-02-15 PL PL17710128T patent/PL3416674T3/en unknown
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- 2017-02-15 EP EP17710128.4A patent/EP3416674B1/en active Active
- 2017-02-15 US US16/077,512 patent/US10722553B2/en active Active
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6271368B1 (en) * | 1995-06-26 | 2001-08-07 | Madus Ag Köln | Recombinant mistletoe lectin (rML) |
WO2003054544A2 (en) | 2001-12-21 | 2003-07-03 | Viscum Ag | Method for determination of the responsiveness of an individual to mistletoe lectin |
US20050221380A1 (en) * | 2001-12-21 | 2005-10-06 | Viscum Ag | Method for determination of the responsiveness of an individual to mistletoe lectin |
US7635567B2 (en) | 2001-12-21 | 2009-12-22 | Viscum Ag | Method for determination of the responsiveness of an individual to mistletoe lectin |
EP2508195A1 (en) | 2011-04-06 | 2012-10-10 | Cytavis BioPharma GmbH | Medicine containing recombinant mistellectins for treating malignant melanoma |
US9981007B2 (en) | 2011-04-06 | 2018-05-29 | Cytavis Biopharma Gmbh | Drug containing recombinant mistletoe lectins for treating malignant melanoma |
Non-Patent Citations (5)
Title |
---|
Gabius, H-J., et al., "The Immunomodulatory ?-Galactoside-Specific Lectin from Mistletoe: Partial Sequence Analysis, Cell and Tissue Binding, and Impact on Intracellular Biosignalling of Monocytic Leukemia Cells", Anticancer Research, vol. 12, No. 3, (1992), pp. 669-675. |
International Search Report for PCT/EP2017/053429 dated Jun. 7, 2017. |
Schötterl, S., et al., "Mistletoe Compounds as Anti-Cancer Drugs: Effects and Mechanisms in the Treatment of Glioblastoma". In Mistletoe: From Mythology to Evidence-Based Medicine; Zänker, K., Kaveri, S. (eds.); Karger: Basel, 2015; vol. 4; pp. 48-56. |
Written Opinion of the International Searching Authority for PCT/EP2017/053429 dated Jun. 7, 2017. |
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EP3416674A1 (en) | 2018-12-26 |
EP3416674B1 (en) | 2020-11-25 |
EP3205348A1 (en) | 2017-08-16 |
PL3416674T3 (en) | 2021-06-14 |
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US20190046606A1 (en) | 2019-02-14 |
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